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TremPro® 644 High Temperature Silicone Sealant is a one-part, ready-to-use silicone adhesive sealant. It has a paste-like consistency and cures to silicone rubber on exposure to atmospheric moisture at room temperature. It has the following key performance properties: -75°F to 500°F continuous operation temperature range (up to 600°F intermittently). Color is high-temp red.
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Most of the sealants have a 12-month shelf life based on the manufacturing date and batch numbers from the tubes or cases.
Tremco recommends that our sealants be applied at substrate temperatures of 40°F (5°C) and rising to 120°F (49°C).
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